Tudor · Black Bay

Strap for Heritage Black Bay Black Manufacture / Strap

Takes 22 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width22 mm
Case diameter41 mm
Reference79230N-0001
FamilyBlack Bay
MovementTudor caliber MT5602 Hours, Minutes, Seconds | Chronometer
CaseStainless Steel

Recommended spring bar

Modern Tudor 22mm spring bars — factory specification

Technical match for lug width and diameter · lug 22 mm · Ø 1.8 mm

All Tudor spring barsOpen →

Straps for the Black Bay 79230N-0001

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Black Bay 79230N-0001, seen from the bench

The Tudor Black Bay 79230N-0001 evolves a heritage line rooted in the 1950s, delivering a contemporary tool watch with unidirectional steel bezel, screw-down crown, and 200-meter water resistance. Powered by the COSC-certified MT5602 manufacture movement beating at 28,800 vph with ±4 seconds daily precision, this 41mm stainless steel 904L case features a black lacquered dial and anti-reflective sapphire crystal. The 22mm lug width accommodates straps 4–5mm thick, proportioned for optimal wrist presence without compromise on readability.

Frequently asked questions

What is the lug width of the Tudor Black Bay 79230N-0001?

The lug width of the Tudor Black Bay 79230N-0001 is 22 millimetres. This is the distance between the two spring bar attachment points protruding from the case at 3 and 9 o'clock. Always verify this measurement personally before purchasing a strap, avoiding confusion with the case's total width at the attachment point.

Which strap is most suitable for the Tudor Black Bay 79230N-0001?

For the 79230N-0001, we recommend straps crafted from Italian vegetable-tanned leather in cognac brown, mahogany, or black tones. Brown offers an elegant contrast with the brushed steel case whilst maintaining dial legibility. Alternatively, an alligator strap with regular texture creates a constructive sobriety that amplifies the tool watch identity of the timepiece.

How do you change a strap on a 22mm lug width watch?

The process requires a spring bar removal tool or an exceptionally thin flat screwdriver. Position the watch horizontally, locate the small hole in the spring bar at 3 o'clock, insert the tool carefully to lift the bar and withdraw it from the case hole. Repeat on the opposite side. Insert the new strap's spring bars into the holes, pressing until you feel the engagement click. If uncertain, a local watchmaker will complete the operation within minutes.

Which aftermarket straps are compatible with the 79230N-0001?

Any aftermarket strap with a 22mm lug width is mechanically compatible with the 79230N-0001. Milano Straps offers a dedicated collection of 22mm straps in artisanal leather, alligator, shell cordovan, and rubber, all tested for this case. Compatibility is guaranteed by the lug width specification: if it is 22mm, the pairing will be mechanically correct.

How long does a leather strap last on a Black Bay watch?

A quality leather strap, vegetable-tanned and hand-constructed, typically lasts between 5 and 10 years under moderate use with appropriate maintenance. Material ageing is integral to its beauty: patina develops progressively. If exposed to constant humidity, perspiration, or tropical climates without respite, longevity reduces to 3–4 years. To extend lifespan, allow the strap to breathe during non-use periods and apply conditioning balm annually.

The next step

The right strap isn't chosen. It is built, together.

From the atelier appointment to delivery, every step is made for those who know that things done well take time. Rare leathers, one piece at a time, eighteen months of warranty.

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Casati Milano · Via XX Settembre 15, Milan · by appointment only